El-Reshaid, Kamel. “Physiological Changes During Pregnancy: A Mimic of Medical Disease and Risk to Existing Ones”. Journal of Drug Delivery and Therapeutics 11, no. 3 (May 15, 2021): 103-105. Accessed October 26, 2021. https://jddtonline.info/index.php/jddt/article/view/4708.